Noise reduction with coupled prismatic tubes

The present investigation focuses on an accurate description of sound absorption. Within this research a new technique to create sound absorption for a predefined frequency band has been developed. Additionally, a simple and efficient numerical model for conventional sound absorbing materials, such as glass wool or foams, has been formulated. It is also demonstrated that the newly gained insights are useful in applications not directly related to sound absorption

Dynamical Equilibrium, trajectories study in an economical system. The case of the labor market

The paper deals with the study of labor market dynamics, and aims to characterize its equilibriums and possible trajectories. The theoretical background is the theory of the segmented labor market. The main idea is that this theory is well adapted to interpret the observed trajectories, due to the heterogeneity of the work situations.Comment: accepted to the WSOM 2007 Conference (Bielefield

Developing student’s accounting competencies using Astin’s I-E-O model: an identification of key educational inputs based on Indonesian student perspectives

This paper discusses a model for developing Students’ Accounting Competencies (SAC) using Astin’s Input-Environment-Outcome (I-E-O) model. SAC based on AICPA core competency is considered important due to business and environment changes. Student Motivation, Student Previous Achievement, Student Demographic Characteristics, Learning Facilities, and Comfort of Class Size are educational inputs. Student Engagement and SAC are proxies for Environment and Outcome respectively. Empirically, the aforementioned educational inputs except Student Demographic Characteristics are important inputs for improving SAC. Student Engagement effectively mediates the influence of inputs on SAC. The I-E-O model is appropriate for analysing relationships among a single input, Student Engagement, and SAC. This model becomes less powerful for analysing simultaneous relationships among multiple inputs, Student Engagement, and SAC. Future research on using other assessments for gauging SAC, identifying other significant inputs, identifying the impact of real class size on Student Engagement and SAC, and developing Student Engagement for accounting courses are required

Dynamical Equilibrium, trajectories study in an economical system. The case of the labor market.

The paper deals with the study of labor market dynamics, and aims to characterize its equilibriums and possible trajectories. The theoretical background is the theory of the segmented labor market. The main idea is that this theory is well adapted to interpret the observed trajectories, due to the heterogeneity of the work situations.Segmented labor market; Kohonen maps; trajectories

Does Weight Status Impact Metabolic Health in Adolescents When Controlling for Physical Fitness?

Purpose: To determines whether adolescents who are fit with overweight/obesity are similar in their metabolic profile to adolescents who are fit and normal weight. Methods: Adolescents participated in 3 sessions: (1) resting vitals and anthropometrics; (2) maximal aerobic treadmill test () to determine physical fitness; and (3) dual-energy x-ray absorptiometry and fasting laboratory draw for analysis of insulin, glucose, high-density lipoprotein, triglycerides, and C-reactive protein. Results: Of the 30 fit adolescents who are normal weight and 16 adolescents who are fit and overweight/obese (OW/OB), metabolic syndrome was apparent in 1 adolescent who are normal weight and 4 adolescents who are OW/OB. Metabolic syndrome severity was positively associated with body mass index, waist circumference, total body fat, insulin resistance, and C-reactive protein but inversely associated with peak relative, but not lean . Conclusions: Despite good physical fitness, adolescents who are OW/OB demonstrated greater metabolic syndrome than adolescents who are normal weight. Future intervention research is necessary to explore the relation between physical fitness and metabolic syndrome

Microglial subtypes: diversity within the microglial community

Microglia are brain-resident macrophages forming the first active immune barrier in the central nervous system. They fulfill multiple functions across development and adulthood and under disease conditions. Current understanding revolves around microglia acquiring distinct phenotypes upon exposure to extrinsic cues in their environment. However, emerging evidence suggests that microglia display differences in their functions that are not exclusively driven by their milieu, rather by the unique properties these cells possess. This microglial intrinsic heterogeneity has been largely overlooked, favoring the prevailing view that microglia are a single-cell type endowed with spectacular plasticity, allowing them to acquire multiple phenotypes and thereby fulfill their numerous functions in health and disease. Here, we review the evidence that microglia might form a community of cells in which each member (or "subtype") displays intrinsic properties and performs unique functions. Distinctive features and functional implications of several microglial subtypes are considered, across contexts of health and disease. Finally, we suggest that microglial subtype categorization shall be based on function and we propose ways for studying them. Hence, we advocate that plasticity (reaction states) and diversity (subtypes) should both be considered when studying the multitasking microglia.España, Ministerio de Ciencia, Innovación y Universidades FEDER y UE RTI2018-098645-B-10